Assertion: Fats and oils are one of the main sources of food for all living organisms.
Reason : Lipids act as energy reserves.

Options

A. Assertion and reason both are correct statements and reason is correct explanation for assertion.
B. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C. Assertion is correct statement but reason is wrong statement.
D. Assertion is wrong statement but reason is correct statement.

Answer

To analyze the given assertion and reason, we will break down the concepts step by step.

### Step 1: Understanding the Assertion
The assertion states that "Fats and oils are one of the main sources of food for all living organisms."

- **Explanation**: Fats and oils, which are types of lipids, are indeed essential components of the diet for many organisms. They provide a concentrated source of energy, which is crucial for various biological functions.

### Step 2: Understanding the Reason
The reason states that "Lipids act as energy reserves."

- **Explanation**: Lipids, including fats and oils, serve as energy reserves in living organisms. When the body requires energy, it can metabolize these stored lipids to release energy. This function is vital for maintaining energy balance, especially during periods of fasting or increased energy demand.

### Step 3: Evaluating the Relationship
Now we need to evaluate the relationship between the assertion and the reason.

- Both the assertion and the reason are true statements. Fats and oils are indeed significant sources of food, and lipids do function as energy reserves.

### Step 4: Conclusion
Since both the assertion and the reason are true, and the reason provides a correct explanation for the assertion, we can conclude that:

- **Final Answer**: Both the assertion and the reason are correct, and the reason is a correct explanation for the assertion.